JPH0656376A - Door controller of elevator - Google Patents

Abstract

(57) [Summary] [Purpose] When the number of passengers in the car is small and the car is stopped by calling the car, the door is controlled to stop at the intermediate position, the opening and closing time of the door is shortened, and the operation efficiency is improved. [Structure] A load detector W that detects that the load in the car is a predetermined value and a relay that detects that the car door has opened to the middle position of the car are provided, and the car stops only by calling the car. Further, when the load is equal to or less than the predetermined value, the contact point OL2a opens when the door is opened, and the door stops at the intermediate position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator door control device for efficiently opening and closing an elevator door.

[0002]

2. Description of the Related Art Generally, when a car call or a hall call occurs in an elevator, the car stops in a shared bus system at a nearby call floor, where a door is opened and passengers get on and off, and the door is closed after a predetermined time. , Is configured to service the next call. Regarding the above call registration device,
For example, Japanese Patent Application Laid-Open No. 54-18567 and Japanese Patent Application Laid-Open No. 61-221078 describe a door control device.

[0003]

By the way, in the above-mentioned conventional door control device, the door is always fully opened regardless of the number of passengers in the car. Therefore, there is a problem that the door opening / closing time becomes long and the operation efficiency of the elevator is lowered particularly in the case of a door having two single-open panels or three-panel.

In view of the above-mentioned drawbacks, the present invention is to provide a control device for an elevator door which can improve the operating efficiency.

[0005]

[Means for Solving the Problem] The purpose is to activate a car in response to a car call or a landing call, and
In an elevator door control device having means for opening and closing the door at the designated floor, a detector for detecting that the loading load in the car is below a predetermined value, and the car door is a car front A switch that detects that the car is opened to the intermediate position is provided, and the car stops only by calling the car.
Further, it is achieved by providing a stopping means for intermediately stopping the door with the detection switch when the loaded load is equal to or less than a predetermined value.

[0006]

Now, the detector is set to operate when the load becomes 40% or more. Passengers in the car get close to capacity,
When the load exceeds 40%, the detector activates and the door is fully opened. On the other hand, there is one passenger in the car and the payload is 40.
When the value is less than or equal to%, the door is half opened, and the opening and closing time of the door is shortened. In this way, when the number of passengers in the car is small, the opening and closing time of the door is shortened, so that the elevator operating efficiency is improved.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In addition, the elevator shall operate on the 1st to 3rd floors.

FIG. 2 is a plan view showing a schematic structure of the car. In the figure, CG is a car main body, D is a door provided in the frontage of the car, and the door D is a single-open two panel D1,
D2. CL1 is a relay of a detector that detects that the door D is fully closed, OL1 is a relay of a detector that detects that the door D is fully open, and OL2 is a door that detects that the door D has been opened to almost the middle position of the frontage.

FIG. 3 is a side view of the car.
The car body CG is supported by a rubber vibration isolator PG. W is a load detector, and when the passenger gets on the car body CG, the anti-vibration rubber PG bends, and the load detector W operates when the load reaches, for example, 40% of the rated load.

FIG. 1 is an electrical connection diagram of a door control device according to an embodiment of the present invention. In the figure, P and N are DC power supply terminals, Wa is a normally open contact that is closed when the load detector W is activated, 65 is a relay that is energized when the load detector W is activated, and 65b is its normally closed contact. , F1 to F3 are baskets,
Normally open contacts 1Fb and 2Ub of the floor selector for detecting that the floor is stopped on the 1st to 3rd floors are normally closed contacts of the elevator hall call relays on the 1st and 2nd floors, 2Db and 3Db are Normally closed contact for descending hall call relay on the 2nd and 3rd floor, 61
a and 62a are normally open contacts of the relay that are energized while the car is moving up or down, 10b ₁ and 10b ₂ are normally closed contacts of the relay that detect that the car is running, and AX is the car call of the car. When stopped, it is an auxiliary relay that detects that the load detector W is not operating. AXa is its normally open contact, A
Xb is its normally closed contact, CL1b is the normally closed contact of the relay CL1, and OL1b and OL2b are the relays OL1 and O.
Similarly, normally closed contacts of L2, OL1a and OL2a, are normally open contacts, T is a timer for setting the door opening time of the door D, for example, 4 seconds, and Ta and Tb are normally open contacts and normally closed contacts,
Reference numeral 1 is a relay for giving a door closing command of the door D, 101b is its normally closed contact, 102 is a relay for giving a door opening command of the door D, and 102b is a normally closed contact for energizing the relay 101 or the relay 102. Then, the door D is closed or opened by a control device (not shown).

Next, the operation of this embodiment will be described.

It is assumed that the car is now capacityd from the first floor and goes to the second floor. At this time, since the car is full, the load detector W operates, the relay 65 is energized, the contact 65b is opened, and the relay AX is deenergized. Therefore, the contact AXb is closed.
When the car reaches the second floor, the contact 10b ₁ is closed, the relay 102 is energized, and the door D starts to open. At the intermediate position of the frontage, the relay OL2 operates and the contact OL2 opens, but it becomes irrelevant because the contact AXb is closed, and at the door open end, the relay OL1 is energized, the contact OL1b opens, and the door D stops. On the other hand, when the contact OL1a is closed, the timer T starts counting, and after 4 seconds, the timer T operates, the contact Ta is closed, the door D starts the door closing operation, and the relay CL1 is energized at the door open end, The relay 101 is deenergized.

Next, it is assumed that the car goes from the first floor to the second floor by one person. At this time, since there is only one passenger, the load detector W does not operate, so the relay 65 is closed. When the car arrives on the second floor, P-65b-F2a-61a-2Ub-1
0b by the circuit of ₂ -AX biased relay AX is, contact AXb is closed. Similarly to the above, when the contact 10b ₁ is closed, the door D performs the door opening operation.
Since b is open, when the door D reaches the middle position of the frontage, the relay OL1 is energized, the relay 102 is deenergized, and the door D stops at the middle position of the frontage. On the other hand, P-OL2a-
With the AXa-TN circuit, the timer T starts counting and the timer T operates after a predetermined time, the contact Ta is closed, and the door D starts the door closing operation.

At this time, if the ascending hall call for the second floor is registered, the contact 2Ub is open.
Therefore, as described above, even if the contact 65b is closed, the relay AX is not energized, so the contact AXb is closed.
No. 2 becomes irrelevant, door D is fully opened, and passengers can enter and leave with plenty of time.

It should be noted that when the car is called only by the hall call, the door D does not stop at the intermediate position because any one of the contacts 1Ub to 3Db is open.

As described above, when the car is registered by calling the car and the number of passengers is small, the door D is opened only to the intermediate position, so that the door opening / closing time is shortened and the elevator operating efficiency can be improved. .

In the above embodiment, the elevator has been described as operating on the 1st to 3rd floors, but the description will be omitted because it is the same even if the number of floors increases. Further, although the load detector is used to detect the congestion degree of passengers in the car, the same effect can be obtained by directly detecting the number of passengers.

[0018]

As described above, according to the present invention,
If the load in the car is less than the specified value and only the car is called,
When the car stops on a predetermined floor, the door is configured to open to the middle position of the frontage, so depending on the number of passengers in the car,
It is possible to get off efficiently, and as a result, it is possible to shorten the time required to open and close the door and improve the operating efficiency of the elevator.

[Brief description of drawings]

FIG. 1 is an electrical connection diagram showing an embodiment of a control device for an elevator door according to the present invention.

FIG. 2 is a plan view showing a schematic configuration of a car.

FIG. 3 is a side view of the car.

[Explanation of symbols]

 101 Door-closing relay 102 Door-opening relay AX Auxiliary relay CL1 Door-closing end detection relay OL1 Door-opening end detection relay OL2 Door intermediate position detection relay W Load detector D Door CG Car body

Claims (1)

[Claims] 1. An elevator door control device having means for opening and closing a door at the call floor in response to a car call or a landing call, wherein a loading load in the car is a predetermined value or less. Is provided, and a switch for detecting that the car door has opened to the middle position of the front of the car is provided, the car is stopped only by the car call, and the loading load is predetermined. A control device for an elevator door, comprising stop means for intermediately stopping the door with the detection switch when the value is less than a predetermined value.